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| author | Joel Becker <joel.becker@oracle.com> | 2008-08-20 19:36:33 -0700 |
|---|---|---|
| committer | Mark Fasheh <mfasheh@suse.com> | 2008-10-13 16:57:05 -0700 |
| commit | f99b9b7ccf6a691f653cec45f36bfdd1e94769c7 (patch) | |
| tree | 1c6ff6ea1fa1bb86b70f1fd78dd725b559c729e4 /fs/ocfs2/aops.c | |
| parent | 1e61ee79e2a96f62c007486677319814ce621c3c (diff) | |
| download | linux-f99b9b7ccf6a691f653cec45f36bfdd1e94769c7.tar.gz | |
ocfs2: Make ocfs2_extent_tree the first-class representation of a tree.
We now have three different kinds of extent trees in ocfs2: inode data (dinode), extended attributes (xattr_tree), and extended attribute values (xattr_value). There is a nice abstraction for them, ocfs2_extent_tree, but it is hidden in alloc.c. All the calling functions have to pick amongst a varied API and pass in type bits and often extraneous pointers. A better way is to make ocfs2_extent_tree a first-class object. Everyone converts their object to an ocfs2_extent_tree() via the ocfs2_get_*_extent_tree() calls, then uses the ocfs2_extent_tree for all tree calls to alloc.c. This simplifies a lot of callers, making for readability. It also provides an easy way to add additional extent tree types, as they only need to be defined in alloc.c with a ocfs2_get_<new>_extent_tree() function. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
Diffstat (limited to 'fs/ocfs2/aops.c')
| -rw-r--r-- | fs/ocfs2/aops.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 530b1ff599c0..ed937fa9e4e3 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1242,6 +1242,7 @@ static int ocfs2_write_cluster(struct address_space *mapping, int ret, i, new, should_zero = 0; u64 v_blkno, p_blkno; struct inode *inode = mapping->host; + struct ocfs2_extent_tree et; new = phys == 0 ? 1 : 0; if (new || unwritten) @@ -1276,10 +1277,11 @@ static int ocfs2_write_cluster(struct address_space *mapping, goto out; } } else if (unwritten) { - ret = ocfs2_mark_extent_written(inode, wc->w_di_bh, + ocfs2_get_dinode_extent_tree(&et, inode, wc->w_di_bh); + ret = ocfs2_mark_extent_written(inode, &et, wc->w_handle, cpos, 1, phys, - meta_ac, &wc->w_dealloc, - OCFS2_DINODE_EXTENT, NULL); + meta_ac, &wc->w_dealloc); + ocfs2_put_extent_tree(&et); if (ret < 0) { mlog_errno(ret); goto out; @@ -1666,6 +1668,7 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, struct ocfs2_alloc_context *data_ac = NULL; struct ocfs2_alloc_context *meta_ac = NULL; handle_t *handle; + struct ocfs2_extent_tree et; ret = ocfs2_alloc_write_ctxt(&wc, osb, pos, len, di_bh); if (ret) { @@ -1719,10 +1722,11 @@ int ocfs2_write_begin_nolock(struct address_space *mapping, (long long)i_size_read(inode), le32_to_cpu(di->i_clusters), clusters_to_alloc, extents_to_split); - ret = ocfs2_lock_allocators(inode, wc->w_di_bh, &di->id2.i_list, + ocfs2_get_dinode_extent_tree(&et, inode, wc->w_di_bh); + ret = ocfs2_lock_allocators(inode, &et, clusters_to_alloc, extents_to_split, - &data_ac, &meta_ac, - OCFS2_DINODE_EXTENT, NULL); + &data_ac, &meta_ac); + ocfs2_put_extent_tree(&et); if (ret) { mlog_errno(ret); goto out; |